On Process^Medium Motivating Collocation

Bateman (1998: 18-9):

The lexicogrammatical realisation of nuclear relations has previously been the concern of treatments of transitivity and, as far as their discourse function has been concerned, has been treated under collocation. In English Text, however,

“[a]n attempt will be made to unpack these relations ... in order to identify more precisely the semantic relations involved. What this amounts to is a foray into the discourse semantics of experiential grammar, which is in itself a daunting task. It is however an essential one, since the lexical relations under consideration here cannot be explained simply by appealing to grammatical structure.’’ [p309] 

Martin shows this by examples such as the following:

Ben serves. That’s his fifth ace of the match. 

where the particular collocation is not within a single grammatical unit, but is nevertheless strongly motivated by the nuclear configuration of ‘serving aces’ available for tennis.

Blogger Comments:

[1] To be clear, the source of Martin's nuclear relations is Halliday's (1985: 149) ergative model of clause transitivity.

[2] This is misleading, because it is untrue.  Here Bateman is accepting without question Martin's  unsourced claim (p309):

In previous approaches to lexical cohesion, nuclear relations have been handled under the heading collocation.

Given that lexical cohesion is a non-structural system of the textual metafunction, and that the ergative model within transitivity is a structural system of the experiential metafunction, any treatment of clause ergativity under collocation would be a serious misunderstanding of both systems.

What is true is that transitivity structures can be used to identify the type of expansion relation between lexical items related cohesively by collocation (Halliday & Matthiessen 2014: 649).

[3] This is hardly surprising, given that collocation, like all types of lexical cohesion, is not a system of the clause.

[4] To be clear, Martin's example (p309) is:

Ben serves. That’s his fifth ace of the match.

The claim here is that lexical collocation of serves and ace is motivated by the clause nucleus (Process/Medium) of grammatical structure ('serving aces').   The immediate problem with this explanation is that 'serving aces' is Process^Range: process, not Process^Medium.

Moreover, since an 'ace' is a type of 'serve', the lexically cohesive relation between them is hyponymy, and it is this that actually accounts for the tendency of the lexical items 'serves' and 'ace' to co-occur.